Why is it so troublesome to use TextOut in VS?

xza285

void CEx03aView::OnDraw(CDC* pDC)
{
CEx03aDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
m_str.LoadString(IDS_HELLO);
To

pDC->TextOut(0,0,m_str);//If pDC->TextOut(0,0,"HELLO"); is used directly here, an error will be reported!
pDC->SelectStockObject(GRAY_BRUSH);
pDC->Ellipse(CRect(0,20,100,120));
// TODO: Add drawing code for this machine data here
}
It is relatively simple in vc6!

deidei

pDC->TextOut(0,0,L"HELLO");

deidei

pDC->TextOut(0,0,_T"HELLO");

unicode version: pDC->TextOutW(0,0,_T"HELLO");

zeroguy01

I still like to use pDC->TextOut(0,0,_T("HELLO"));
It is said that the use of unicode is to solve compatibility problems

cloud31

VS requires you to use unicode by default

xza285

Alas, my foundation is still not strong, thank you!